Using the new Screenshot/Screencast feature on GNOME 42 doesn't work.
The icon shows up in the System tray at the top right for a millisecond but immediately disappears, probably the result of a crash.
Checking my Videos/Screencasts folder confirms it doesn't record anything for even a second before immediately crashing/closing.
I'm using the newest pushes from the last update which is GNOME 42.0 and kernel 5.15.32-213 if that matters.
Video:
